package scjp.pruebas;

import java.util.TreeSet;

public class Ques02 {
	
public static void main(String[] args) {
		
		MyNavigableSet objects = new MyNavigableSet();
		//objects.add(new Object());
		System.out.println(objects);
	}

}

class MyNavigableSet extends TreeSet<String>{

	public boolean add(Object value){
		return super.add(value);
	}
}